Win10-Can you expand the buffer when Writing to Bluray/DVD disc for backup??

Win10-Can you expand the buffer when Writing to Bluray/DVD disc for backup??
I am Writing 25GB Bluray discs for backup and the buffer is so small it constantly start/stops, ~ 2-3sec cycles, the drive runs for hours with nothing else running. It has times where it will get a slightly longer write maybe 5-6 sec but then right back to the shorter cycles. Its a I7-4770, 12GB, and plenty of space both on disk and in memory.